Careful repair of the cracks between the intake and exhaust ports.
In addition, the sealing surface was damaged by an automotive workshop.
The total sealing surface had already been reduced to the minimum dimension.
The cracks were milled out into the “sound” area and sealed again by micro laser welding.
The removal and installation of the valve seat rings, the finishing work on the sealing surface, and the installation of the valves were carried out professionally by our partner company.
